Bug#742307: xserver-xorg-video-radeon: Radeon HD 6570 ("Turks") - severe display corruption esp. after boot

[Benjamin Moody]

>> Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
>
> Is this still an issue with a newer kernel?  IIRC, this issue was
> fixed a while ago.

Tested with kernel 3.13-0.bpo.1-amd64.  The same problem occurs except
that Ctrl-Alt-Backspace doesn't work either.

I also noticed that the newer kernel wanted an additional firmware
file ('radeon/TURKS_smc.bin') so I upgraded firmware-linux-nonfree to
0.41~bpo70+1.  That also made no difference.

Benjamin